7/12/2013 10:55 AM | |
Posts: 47 Rating: (8) |
Hi, What do we have a dedicated relay for earth fault, why cannt simple ACB having overload and short circuit can protect the system from earth fault.? |
7/12/2013 11:09 AM | |
Posts: 43 Rating: (9) |
Hi Dear, In 3WT & 3WL ACB have the features of eathfault. Also its setting is provided in in its ETU. Below ETU have this above features in 3WL. 1. ETU27B - LSING 2. ETU45B - LSING + LCD DISPLAY 3. ETU76B - LSING + GRAPHICS DISPLAY Below ETU have this above features in 3WT. 1. ETU37WT - LSING + LCD DISPLAY 2. ETU45WT - LSING + LCD DISPLAY & ADDITIONAL FEATURES 3.ETU47WT - LSING2 with LCD display and additional features Also find teh attach catalogue for your reference. regards Attachment3WT ACB.pdf (454 Downloads) |
7/15/2013 6:38 AM | |
Posts: 235 Rating: (52) |
Hi scorpio31 There is a perticular earth fault relay for the system called risricted earth faulth realy which is connected between xmer end and system line busbar(cable) which is monitering whole system earth fault current and given triping to the circiut breaker in faulty condition. For your refrence please find the attach file of wiring diagarm for the same.
Attachmentearth fault relay.pdf (482 Downloads) |
This contribution was helpful to1 thankful Users |
7/15/2013 3:36 PM | |
Joined: 4/23/2010 Last visit: 12/31/2023 Posts: 8092 Rating: (877) |
Hello, Sorry but I don't agree about the attached drawing. It is not earth fault relay. |
7/15/2013 8:45 PM | |
Posts: 109 Rating: (11) |
whats wrong in that? |
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